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Rambus Is Alive: SiS 658 In An Exclusive Test

Comparison: Chipsets For Pentium 4

ChipsetSiS 658SiS 659Intel 850E
Price 1K unit18 Dollarn.a.40 Dollar
IntroductionMarch 2003June 2003May 2002
Processor PlattformSocket 478Socket 478Socket 478
Supported CPUIntel Pentium 4Intel Pentium 4Intel Pentium 4
Chipset NorthbridgeSiS 658SiS 659Intel KC82850E
Chipset SouthbridgeSiS 963UASiS 9xxIntel 82801 BA
Front Side Bus Clock100/133 MHz100/133 MHz100/133 MHz
Memory Clock400/533 MHz400/533/600/667 MHz400 MHz/533 MHz
Asynchronous Memory Clockyesyesyes
FSB-Overclockingup to 200 MHzup to 200 MHzup to 166 MHz
max. # DIMM-Slots444
max. Memory2048 MB2048 MB2048 MB
SDRAM Supportnonono
DDR SDRAM Supportnonono
Dual DDR SDRAM Supportnonono
RDRAM Support (Rambus)yesyesyes
Dual RDRAM Support (Rambus)yesyes (Quad-RDRAM)yes
Ultra-DMA/33/66/100yes/yes/yesyes/yes/yesyes/yes/yes
Ultra-DMA/133yesyesno
Max. # USB444
USB 2.0yesyesno
Max.# PCI Slots666
Integrated Graphicsnonono
AGP 1x / 2x / 4xyes / yes / yesyes / yes / yesyes / yes / yes
AGP 8xyesyesno
Hyper-Threading Supportyesyesyes
ChipsetIntel 845GEIntel 845PEIntel 845GV
Price 1K unit37 Dollar32 Dollar26 Dollar
Processor PlattformSocket 478Socket 478Socket 478
Supported CPUIntel Pentium 4Intel Pentium 4Intel Pentium 4
Chipset NorthbridgeIntel RG82845GEIntel RG8245PEIntel RG8245GV
Chipset SouthbridgeIntel 82801 DBIntel 82801 DBIntel 82801 DB
Front Side Bus Clock100/133 MHz100/133 MHz100/133 MHz
Memory Clock100/133/166 MHz100/133/166 MHz100/133/166 MHz
Asynchronous Memory Clockyesyesyes
FSB-Overclockingup to 200 MHzup to 200 MHzup to 200 MHz
max. # DIMM-Slots332
max. Memory3072 MB3072 MB3072 MB
SDRAM Supportnonono
DDR SDRAM Supportyesyesyes
Dual DDR SDRAM Supportnonono
RDRAM Support (Rambus)nonono
Dual RDRAM Support (Rambus)nonono
Ultra-DMA/33/66/100yes/yes/yesyes/yes/yesyes/yes/yes
Ultra-DMA/133nonono
Max. # USB444
USB 2.0yesyesyes
Max.# PCI Slots666
Integrated Graphicsyesnoyes
AGP 1x / 2x / 4xyes / yes / yesyes / yes / yesyes / yes / yes
AGP 8xnonono
Hyper-Threading Supportyesyesyes
ChipsetIntel 845GIntel 845ESiS 645DX
Price 1K unit35 Dollar28 Dollar20 Dollar
IntroductionMay 2002May 2002March 2002
Processor PlattformSocket 478Socket 478Socket 478
Supported CPUIntel Pentium 4Intel Pentium 4Intel Pentium 4
Chipset NorthbridgeIntel RG82845GIntel RG8245EESSiS 645DX
Chipset SouthbridgeIntel 82801 DBIntel 82801 DBSiS 961
Front Side Bus Clock100/133 MHz100/133 MHz100/133 MHz
Memory Clock100/133/166 MHz100/133 MHz100/133/166/200 MHz
Asynchronous Memory Clockyesyesyes
FSB-Overclockingup to 166 MHzup to 166 MHzup to 166 MHz
max. # DIMM-Slots333
max. Memory3072 MB3072 MB3072 MB
SDRAM Supportyesyesyes
DDR SDRAM Supportyesyesyes
Dual DDR SDRAM Supportnonono
RDRAM Support (Rambus)nonono
Dual RDRAM Support (Rambus)nonono
Ultra-DMA/33/66/100yes/yes/yesyes/yes/yesyes/yes/yes
Ultra-DMA/133nonono
Max. # USB444
USB 2.0yesyesno
Max.# PCI Slots666
Integrated Graphicsyesnoyes
AGP 1x / 2x / 4xyes / yes / yesyes / yes / yesyes / yes / yes
AGP 8xnonono
Hyper-Threading Supportno (yes, Step 2)nono
ChipsetSiS 645Intel 850Intel 845D
Price 1K unitn.a.38 Dollar23 Dollar
IntroductionNovember 2001January 2001December 2001
Processor PlattformSocket 478Socket 423/478Socket 478
Supported CPUIntel Pentium 4Intel Pentium 4Intel Pentium 4
Chipset NorthbridgeSiS 645Intel KC82850Intel 82845
Chipset SouthbridgeSiS 961Intel 82801 BAIntel 82801 BA
Front Side Bus Clock100 MHz100/133 MHz66/100/133 MHz
Memory Clock100/133 MHz400 MHz100/133 MHz
Asynchronous Memory Clockyesyesyes
FSB-Overclockingup to 133 MHzup to 133 MHzup to 166 MHz
max. # DIMM-Slots343
max. Memory3072 MB2048 MB2048 MB
SDRAM Supportyesnono
DDR SDRAM Supportyesnoyes
Dual DDR SDRAM Supportnonono
RDRAM Support (Rambus)noyesno
Dual RDRAM Support (Rambus)noyesno
Ultra-DMA/33/66/100yes/yes/yesyes/yes/yesyes/yes/yes
Ultra-DMA/133nonono
Max. # USB444
USB 2.0nonono
Max.# PCI Slots666
Integrated Graphicsyesnono
AGP 1x / 2x / 4xyes / yes / yesyes / yes / yesyes / yes / yes
AGP 8xnonono
Hyper-Threading Supportnonono

The table above lists all the available chipsets for the Intel platform (socket 478). We did not include older modules with SDRAM support (such as the Intel 845, for example) in our test. After all, production of boards with these chips has long since ceased, or the boards are no longer available on the market.

The Intel 850E remains the most expensive candidate as a result of its low production run, costing $40 per chipset. This price is only exceeded by the soon to be released Canterwood (875) with 800 MHz FSB clock rate and costing $50.